Featured Research

from universities, journals, and other organizations

Bone Marrow Cell Transplants Help Nerve Regeneration

Date:
December 5, 2007
Source:
Cell Transplantation Journal
Summary:
Researchers inserted bone marrow-derived cells (BMCs) into 15mm silicon tubes and subsequently implanted into animal models at sites intended for nerve regeneration. When the BMCs were nourished with bioengineered additives -- such as growth factors and cell adhesion molecules -- the BMCs differentiated into cells with characteristics of Schwann cells -- a variety of neural cell providing insulating myelin around the axons of peripheral nerve cells. The work represents a further step in developing artificial nerves.

A study carried out by researchers at the Kyoto University School of Medicine has shown that when transplanted bone marrow cells (BMCs) containing adult stem cells are protected by a 15mm silicon tube and nourished with bio-engineered materials, they successfully help regenerate damaged nerves. The research may provide an important step in developing artificial nerves.

"We focused on the vascular and neurochemical environment within the tube," said Tomoyuki Yamakawa, MD, the study's lead author. "We thought that BMCs containing adult stem cells, with the potential to differentiate into bone, cartilage, fat, muscle, or neuronal cells, could survive by obtaining oxygen and nutrients, with the result that rates of cell differentiation and regeneration would improve."

Nourished with bioengineered additives, such as growth factors and cell adhesion molecules, the BMCs after 24 weeks differentiated into cells with characteristics of Schwann cells -- a variety of neural cell that provides the insulating myelin around the axons of peripheral nerve cells. The new cells successfully regenerated axons and extended their growth farther across nerve cell gaps toward damaged nerve stumps, with healthier vascularity.

"The differentiated cells, similar to Schwann cells, contributed significantly to the promotion of axon regeneration through the tube," explained Yamakawa. "This success may be a further step in developing artificial nerves."

Grafting self-donated (autologous) nerve cells to damaged nerves has been widely practiced and considered the "gold standard." However, autologous cells for transplant are in limited supply. Allologous cells, donated by other individuals, require the host to take heavy immunosuppressant drugs.

Artificial nerves, cultured from a variety of cells and transplanted to nerve damaged areas, have been considered as alternatives to nerve grafting. However, prior to this research, cells cultured for this purpose have generally not been very successful in regenerating axons with sufficient vascularity or length to bridge nerve gaps.

"This technique for implanting BMCs containing adult stem cells at damaged nerve sites as employed by the Kyoto researchers has opened up new possibilities for nerve regeneration," said Paul Sanberg, PhD, D.Sc., Distinguished Professor at University of South Florida Health and co-editor-in-chief of Cell Transplantation.

This research was published in Cell Transplantation (Vol.16 No. 8).


Story Source:

The above story is based on materials provided by Cell Transplantation Journal. Note: Materials may be edited for content and length.


Cite This Page:

Cell Transplantation Journal. "Bone Marrow Cell Transplants Help Nerve Regeneration." ScienceDaily. ScienceDaily, 5 December 2007. <www.sciencedaily.com/releases/2007/12/071204154720.htm>.
Cell Transplantation Journal. (2007, December 5). Bone Marrow Cell Transplants Help Nerve Regeneration. ScienceDaily. Retrieved April 23, 2014 from www.sciencedaily.com/releases/2007/12/071204154720.htm
Cell Transplantation Journal. "Bone Marrow Cell Transplants Help Nerve Regeneration." ScienceDaily. www.sciencedaily.com/releases/2007/12/071204154720.htm (accessed April 23, 2014).

Share This



More Health & Medicine News

Wednesday, April 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Big Pharma Braces for M&A Wave

Big Pharma Braces for M&A Wave

Reuters - Business Video Online (Apr. 22, 2014) Big pharma on the move as Novartis boss, Joe Jimenez, tells Reuters about plans to transform his company via an asset exchange with GSK, and Astra Zeneca shares surge on speculation that Pfizer is looking for a takeover. Joanna Partridge reports. Video provided by Reuters
Powered by NewsLook.com
How Smaller Plates And Cutlery Could Make You Feel Fuller

How Smaller Plates And Cutlery Could Make You Feel Fuller

Newsy (Apr. 22, 2014) NBC's "Today" conducted an experiment to see if changing the size of plates and utensils affects the amount individuals eat. Video provided by Newsy
Powered by NewsLook.com
How to Master Motherhood With the Best Work/Life Balance

How to Master Motherhood With the Best Work/Life Balance

TheStreet (Apr. 22, 2014) In the U.S., there are more than 11 million couples trying to conceive at any given time. From helping celebrity moms like Bethanny Frankel to ordinary soon-to-be-moms, TV personality and parenting expert, Rosie Pope, gives you the inside scoop on mastering motherhood. London-born entrepreneur Pope is the creative force behind Rosie Pope Maternity and MomPrep. She explains why being an entrepreneur offers the best life balance for her and tips for all types of moms. Video provided by TheStreet
Powered by NewsLook.com
Catching More Than Fish: Ugandan Town Crippled by AIDS

Catching More Than Fish: Ugandan Town Crippled by AIDS

AFP (Apr. 22, 2014) The village of Kasensero on the shores of Lake Victoria was where HIV-AIDS was first discovered in Uganda. Its transient population of fishermen and sex workers means the nationwide programme to combat the virus has had little impact. Duration: 02:30 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins